SetTransparency pdfmark ignored

Q&A
1

Hi,
I’m trying to convert a multi-page PSfile into a PDF.

Several figures contain transparency :
gmt psxy -R -J $file -Sb0.4c -Gred -W0.2 -t50 -O -K >> $psFile

and the call for conversion :
gmt psconvert -TF -A $psFile -Fname
(note that the -Z option to get rid of the psFile after conversion doesn’t work).

Even though the conversion occurs and the PDF is readable, there’s no transparency (if I try to convert it manually I got this message :

Converting the PostScript file produced the following warnings: · % Warning: /SetTransparency pdfmark ignored: Unknown %

Infos:
which gs > /usr/local/bin/gs (v. 9.52)
which gmt > /usr/local/bin/gmt (v. 6.0.0)

Thanks !

2

Unfortunately, gs 9.51 and 9.52 have serious bugs, so you can’t get transparency with them. You’d better use ghostscript 9.50 instead.

See https://github.com/GenericMappingTools/gmt/issues/2903 for related discussion.

3

Downgrade to gs 9.50 or wait for 9.53 in September…

4

Ok … Thanks !
Let’s hope 9.53 will fix things (from what I’ve found on the old forum this is a recurring problem :frowning: )